Adsorption of the Methylene Blue Dye on Carbon Nanocomposites Under Dynamic Conditions: A Kinetic Study

The present paper describes kinetic regularities of the removal of the typical synthetic dye, methylene blue (MB), from aqueous solutions by two graphene-organic composites, polyhydroquinone (PHQ)/graphene and polyamine-cumulene (PAC)/carbon nanotubes (CNTs). To study the adsorption kinetics under d...

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Bibliographic Details
Published in:Journal of physics. Conference series 2018-12, Vol.1124 (8), p.81029
Main Authors: Burakova, I V, Babkin, A V, Neskoromnaya, E A, Burakov, A E, Kurnosov, D A, Tkachev, A G
Format: Article
Language:English
Subjects:
Adsorption
Aqueous solutions
Carbon
Carbon nanotubes
Dyes
Graphene
Methylene blue
Nanocomposites
Polyamines
Process parameters
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Summary:The present paper describes kinetic regularities of the removal of the typical synthetic dye, methylene blue (MB), from aqueous solutions by two graphene-organic composites, polyhydroquinone (PHQ)/graphene and polyamine-cumulene (PAC)/carbon nanotubes (CNTs). To study the adsorption kinetics under dynamic conditions simulating the real industrial environment, a column method was implemented using the facility developed. The MB adsorption capacity of the studied nanocomposites was found to be very high (2,938 mg g−1 for the PAC/CNTs at the contact time of 75 min, and 2,610 mg g−1 for PHQ/graphene at 40 min). Finally, the kinetic parameters of the process were determined, and the mechanisms proceeding during the dye adsorption on the carbon nanocomposites were elucidated.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1124/8/081029